Properties of Czech deposited high temperature fly ash

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F19%3A43918483" target="_blank" >RIV/60461373:22310/19:43918483 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68407700:21110/19:00340508

Výsledek na webu

<a href="http://www.wasteforum.cz/cisla/WF_3_2019.pdf" target="_blank" >http://www.wasteforum.cz/cisla/WF_3_2019.pdf</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Properties of Czech deposited high temperature fly ash

Popis výsledku v původním jazyce

Fly ash, a by-product of coal combustion in coal-fired power plants, is a valuable raw material used in construction industry. At present, the combustion technology is gradually declining and the question arises as to whether it will be possible to use high temperature fly ash from stockpiles in the future. The aim of this work was to compare the properties of stockpiled high temperature fly ash (agglomerates) with fresh high temperature fly ash from the power plant Mělník (CZ). Laboratory tests were conducted to determine chemical and mineralogy composition, loss on ignition, changes in morphology, densities (particle, freely settled bulk and tapped), fineness, natural moisture content, standard consistency, setting times, soundness and strength activity index. Agglomerates from the surface layer of the stockpile Panský les (CZ) less than four months old had similar chemical properties as fresh high temperature fly ash. The behavior of agglomerates with cement slurries and mortars achieve the standard requirements for fly ash for concrete. Therefore, it would be possible to use the stockpiled high temperature fly ash for the same purposes as the fresh high temperature fly ash.

Název v anglickém jazyce

Properties of Czech deposited high temperature fly ash

Popis výsledku anglicky

Fly ash, a by-product of coal combustion in coal-fired power plants, is a valuable raw material used in construction industry. At present, the combustion technology is gradually declining and the question arises as to whether it will be possible to use high temperature fly ash from stockpiles in the future. The aim of this work was to compare the properties of stockpiled high temperature fly ash (agglomerates) with fresh high temperature fly ash from the power plant Mělník (CZ). Laboratory tests were conducted to determine chemical and mineralogy composition, loss on ignition, changes in morphology, densities (particle, freely settled bulk and tapped), fineness, natural moisture content, standard consistency, setting times, soundness and strength activity index. Agglomerates from the surface layer of the stockpile Panský les (CZ) less than four months old had similar chemical properties as fresh high temperature fly ash. The behavior of agglomerates with cement slurries and mortars achieve the standard requirements for fly ash for concrete. Therefore, it would be possible to use the stockpiled high temperature fly ash for the same purposes as the fresh high temperature fly ash.

Druh

J_SC - Článek v periodiku v databázi SCOPUS

CEP obor

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OECD FORD obor

20501 - Materials engineering

Projekt

<a href="/cs/project/FV30062" target="_blank" >FV30062: Možnosti využití deponovaných popílků z uhelných elektráren</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2019

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Waste forum

ISSN

1804-0195

e-ISSN

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Svazek periodika

2019

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

8

Strana od-do

268-275

Kód UT WoS článku

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EID výsledku v databázi Scopus

2-s2.0-85072521230